SORPTION OF METAL-IONS BY WHOLE CELLS OF BACILLUS AND MICROCOCCUS

被引：25

作者：

COTORAS, D

VIEDMA, P

CIFUENTES, L

MESTRE, A

机构：

[1] Departamento de Bioquímica y Biología Molecular, Universidad de Chile, Santiago

来源：

ENVIRONMENTAL TECHNOLOGY | 1992年 / 13卷 / 06期

关键词：

BACILLUS; MICROCOCCUS; SORPTION; METALS; URANIUM;

D O I：

10.1080/09593339209385183

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Metal removal by seven strains of Bacillus and Micrococcus was investigated. The culture age of the cells had little or no effect on their sorption capacity. Using the Langmuir isotherm, it was possible to determine that Bacillus subtilis ATCC 6633 had the highest maximum sorption capacity for uranium while a Micrococcus sp. strain presented the highest affinity. pH of the solution affected the sorption of uranium, copper, cadmium and zinc by B. subtilis. Hydrochloric acid was effective for desorption of uranium from pre-loaded biomass. The presence of other ion inhibited uranium sorption in the following order: Cu2+>Zn2+>Mg2+>Cd2+>Ca2+>K+.

引用

页码：551 / 559

页数：9

共 24 条

[1] ROLE OF CELLULAR DESIGN IN BACTERIAL METAL ACCUMULATION AND MINERALIZATION [J].